How to prepare for painting wooden surface

wooden surfaces prior to the application you need to prepare: check for the presence of knots, protruding nails, irregularities, residues of paints.All defects must be eliminated.To get a nice coating, the surface must be flat and smooth.

knots and nails

Speakers knots on the surface of the product is removed using a semicircular chisel to a depth of 2-3 mm, and then treated with linseed oil putty and smeared.You can replace protruding twigs, wood plugs of similar breed, securing their joiner's glue.It is important that the direction of the surface of the fiber and cork coincided.Wooden hammer nails into a few millimeters.

resins and grease

Tar stains are cut and processed in the same way as knots.Grease stains treated with 5% solution of soda ash.Rust is removed with 10% solution of copper sulfate or 3% solution of hydrochloric acid.If grease stains or rust is not washed they can paint the white enamel paint.

Oil stains and paint residues

Such defects are removed by chemical means, by tr

eatment with acetone or other means to remove the paint.The surface nitro old oil paint should be completely removed, or nitro, applied to the surface previously painted with oil paint, and bulges to curdle.You can remove the paint by heating it professional hairdryer, and bloated the paint should be removed with a metal spatula.

Removing mold

the presence of mold surface should be rinsed with a hypochlorite solution to remove the mold, according to the manufacturer's instructions.After treatment the surface is rinsed with pure water.

Washing and polishing

To clean the surface of the grease, stains and various surface contamination must be washed with a brush, sponge or cloth, rinse with clean water and leave to dry.

Grinding is carried out after the complete drying of the surface with sandpaper to achieve the destruction of the roughness and surface haze.The remaining defective places are aligned using putty for wood.Do not process the entire surface of the filler to maintain its fibrous structure.

cleaned surfaces and priming

After sanding the surface to be painted is cleaned of dust and small mechanical particles with a brush or scraper.The priming mixture is applied to the surface with a brush or a soft brush, carefully shading along the grain of the wood.

Grinding

After drying the primer mixture should pass along the dry layer of fine-grained sandpaper.The prepared surface should be smooth, smooth, without any scratches.